| All Patents in class 408/195 |
Patents 1 -
10
of 70
      |
| Picture | Number | Date | Patentee | Title |
 | 9,398 | Nov. 16, 1852 | C.L. Barnes | Expanding bit |
 | 13,261 | Jul. 17, 1855 | L.H. Gibbs | Expanding auger or bit |
 | 17,038 | Apr. 14, 1857 | A. Hall | Expansive bit |
 | 20,192 | May 11, 1858 | W.A. Clark | Method of seating the movable cutter in expansive bits |
 | 21,597 | Sep. 28, 1858 | W.A. Clark | Expansive bit |
 | 22,195 | Nov. 30, 1858 | M. Norris | Auger for wood |
 | 22,474 | Dec. 28, 1858 | H. Stone | Expanding bit |
 | 25,348 | Sep. 06, 1859 | H. Pennie | Bit for Cutting Circular Washers |
 | 27,946 | Apr. 17, 1860 | J. Blake | Auger |
 | 50,600 | Oct. 24, 1865 | O.A. Smith, C.A. King | Improved Tool for Cutting Washers |
